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Note 14 - Regulatory Capital
3 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Regulatory Capital Requirements under Banking Regulations [Text Block]
14.
Regulatory Capital
 
Under current capital regulations, the Bank is required to comply with
four
separate capital adequacy standards. As of
March 31, 2018,
the Bank continues to be categorized as “well-capitalized” under the prompt corrective action regulations and continues to exceed all regulatory capital requirements. In
2016,
a Capital Conservation Buffer (“CCB”) requirement became effective for banks. The CCB is designed to establish a capital range above minimum capital requirements and impose constraints on dividends, share buybacks and discretionary bonus payments when capital levels fall below prescribed levels. The minimum CCB in
2018
is
1.875%
and increases
0.625%
annually through
2019
to
2.5%.
The CCB for the Bank at
March 31, 2018
was
5.82%.
 
Set forth below is a summary of the Bank’s compliance with banking regulatory capital standards.
 
    March 31, 2018   December 31, 2017
        Percent of       Percent of
    Amount   Assets   Amount   Assets
    (Dollars in thousands)
Tier I (leverage) capital:                                
Capital level   $
637,091
     
9.92
%   $
631,285
     
10.11
%
Requirement to be well capitalized    
321,195
     
5.00
     
312,343
     
5.00
 
Excess    
315,896
     
4.92
     
318,942
     
5.11
 
                                 
Common Equity Tier I risk-based capital:                                
Capital level   $
637,091
     
13.39
%   $
631,285
     
13.87
%
Requirement to be well capitalized    
309,368
     
6.50
     
295,937
     
6.50
 
Excess    
327,723
     
6.89
     
335,348
     
7.37
 
                                 
Tier 1 risk-based capital:                                
Capital level   $
637,091
     
13.39
%   $
631,285
     
13.87
%
Requirement to be well capitalized    
380,760
     
8.00
     
364,230
     
8.00
 
Excess    
256,331
     
5.39
     
267,055
     
5.87
 
                                 
Total risk-based capital:                                
Capital level   $
657,633
     
13.82
%   $
651,636
     
14.31
%
Requirement to be well capitalized    
475,950
     
10.00
     
455,288
     
10.00
 
Excess    
181,683
     
3.82
     
196,348
     
4.31
 
 
 
 
The Holding Company is subject to the same regulatory capital requirements as the Bank. As of
March 31, 2018,
the Holding Company continues to be categorized as “well-capitalized” under the prompt corrective action regulations and continues to exceed all regulatory capital requirements. The CCB for the Holding Company at
March 31, 2018
was
5.95%.
 
Set forth below is a summary of the Holding Company’s compliance with banking regulatory capital standards.
 
    March 31, 2018   December 31, 2017
        Percent of       Percent of
    Amount   Assets   Amount   Assets
    (Dollars in thousands)
Tier I (leverage) capital:                                
Capital level   $
568,635
     
8.86
%   $
563,426
     
9.02
%
Requirement to be well capitalized    
321,057
     
5.00
     
312,278
     
5.00
 
Excess    
247,578
     
3.86
     
251,148
     
4.02
 
                                 
Common Equity Tier I risk-based capital:                                
Capital level   $
531,305
     
11.17
%   $
527,727
     
11.59
%
Requirement to be well capitalized    
309,286
     
6.50
     
295,865
     
6.50
 
Excess    
222,019
     
4.67
     
231,862
     
5.09
 
                                 
Tier 1 risk-based capital:                                
Capital level   $
568,635
     
11.95
%   $
563,426
     
12.38
%
Requirement to be well capitalized    
380,660
     
8.00
     
364,141
     
8.00
 
Excess    
187,975
     
3.95
     
199,285
     
4.38
 
                                 
Total risk-based capital:                                
Capital level   $
664,177
     
13.96
%   $
658,777
     
14.47
%
Requirement to be well capitalized    
475,824
     
10.00
     
455,177
     
10.00
 
Excess    
188,353
     
3.96
     
203,600
     
4.47